Characterization and quantification of anthocyanins in selected artichoke ( Cynara scolymus L.) cultivars by HPLC—DAD—ESI—MS n

Schütz, Katrin; Persike, Markus; Carle, Reinhold; Schieber, Andreas
April 2006
Analytical & Bioanalytical Chemistry;Apr2006, Vol. 384 Issue 7/8, p1511
Academic Journal
The anthocyanin pattern of artichoke heads ( Cynara scolymus L.) has been investigated by high-performance liquid chromatography–electrospray ionization mass spectrometry. For this purpose a suitable extraction and liquid chromatographic method was developed. Besides the main anthocyanins—cyanidin 3,5-diglucoside, cyanidin 3-glucoside, cyanidin 3,5-malonyldiglucoside, cyanidin 3-(3′′-malonyl)glucoside, and cyanidin 3-(6′′-malonyl)glucoside—several minor compounds were identified. Among these, two peonidin derivatives and one delphinidin derivative were characterized on the basis of their fragmentation patterns. To the best of our knowledge this is the first report on anthocyanins in artichoke heads consisting of aglycones other than those of cyanidin. Quantification of individual compounds was performed by external calibration. Cyanidin 3-(6′′-malonyl)glucoside was found to be the major anthocyanin in all the samples analyzed. Total anthocyanin content ranged from 8.4 to 1,705.4 mg kg−1 dry mass. [Figure not available: see fulltext.]


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